/* GTK - The GIMP Toolkit

 * Copyright (C) 2011 Chun-wei Fan <fanc999@yahoo.com.tw>

 *

 * Author: Chun-wei Fan <fanc999@yahoo.com.tw>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library. If not, see <http://www.gnu.org/licenses/>.

 */

#include <math.h>

/* Workaround for round() for non-GCC/non-C99 compilers */

#ifndef HAVE_ROUND

static inline double

round (double x)

{

  if (x >= 0)

    return floor (x + 0.5);

  else

    return ceil (x - 0.5);

}

#endif

/* Workaround for lrint() for non-GCC/non-C99 compilers */

#ifndef HAVE_LRINT

static inline long

lrint (double x)

{

  if (ceil (x + 0.5) == floor (x + 0.5))

    {

      if (x < 1 && x > -1)

        return 0;

      return (int) ceil (x) % 2 == 0 ? ceil (x) : floor (x);

    }

  else

    return x >= 0 ? floor (x + 0.5) : ceil (x - 0.5);

}

#endif